Tank vessel.



G. P. M. JACK.

TANK VESSEL. APQLIGATIONTILED APR.9. 1913 "1,085,086; Patented Jan. 20, 19141.

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Patented J an. 20, 1914.

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CHARLES I. M. JACK, OF NEVI YORK, N. Y., ASSIGNOR TO THE INTEROGEAN TRANS- PORT COMPANY, OF NEW YORK, N. Y., A CORPORATION OF SOUTH DAKOTA.

TANK VESSEL.

, Specification of Letters ZPa'tent. Pat mtd Jar 29,1914, Application filed April 9, 1913. serial no. 759,943. V

v MIronELL JACK, subject of King George V,

Great Britain, and a resident of the borough of Brooklyn, in the city of New York, county of Kings, and State of New York, have invented certain new and useful Improvements in Tank Vessels, of which the following is a specification.

This invention relates to vessels for carrying liquids in bulk, usually various grades of oil, and comprises a construction wherein approximately semi-circular bulkheads are carried from side to side of the vessel, thereby forming vertical cylindrical tanks which are a part of the structure of the vessel.

The object of this invention is to provide a vessel, wherein the bulkheads do not require stiffening girders to preserve their form, and in which a central longitudinal bulkhead dividing the tanks for the purpose of stability is rendered unnecessary, as with partially filled tanks the center of gravity shifts less to the side with the tilting of the vessel when the tanks are circular.

than when they are rectangular.

A further object is to combine with the vertical cylindrical tanks a utilization of the spaces between the frames of the hull adjoining the bottom of the vessel for the carrying of the oil thereby lowering the center of gravity and increasing the carrying capacity of the vessel. y

, A further object resulting from the omission of stiifening girders and longitudinal bulkheads is that the unit tank spaces can be madeso large that they will be suitable for stowing general cargo, thus making the vessel more useful, since liquid cargo is usually to be had for transportation in only one direction.

A further object resulting from the omis sion of the stifiening girders is to render the tanks easier to clean and put in condition for the reception of general cargo or a more refined grade of oil. The dead weight of the vessel is diminished also by the omission of such stiffening girders; it is thereby rendered less expensive to build, both in time and material, and its capacity is increased. All rivets used in the construction of the bulkheads are in shear and not in tension A further object is to secure aform of construction wherein pipes nstalled for heating and for the discharge of the oil can be so placed that they will not 'inte'rfere with the use of the tanks'for stowing general cargo. I

In the accompanying two sheets of drawings which form a part of this specification Figure 1 is a vertical longitudinal section through a tank vessel embodying my'invention on the line 1-4 of Fig. 4. Fig. 2 is a transverse section through theyessel on the line ll-ll of Figs. 1 and 4. Fig. "3 isa H transverse-section through the vessel on the line Illlll of Figsl and 4:. Fig. dis a plan of the vessel with thedeck broken away over the first and through the second tanks.

The vessel comprises the usual hull, the

bottom of which consists of plates" 1' 1 still ,ened by a kcelson 2 and transverse bottom frames 3 3 together with sides consisting of plates 4 4 and vertical frames 5' 51 The transverse frames and keel are'floored over by plates 6 6, but this flooring need not'coinpletcly cover the underlying frames and keel. Extending from side to" side of the vessel are semi-circular bulkheads 7 7 formed of plates and so disposed that their cancave sides face each other. They are riveted to the sides of the hull, preferably to the vertical frames of the sides. The points of attachment to the sides ofthe hull of the two bulkheads which form a tank may be the same as shown in the two forward tanks 1 1 through chairs 8 8 in which case the two form a continuous circular wall for the tank, or, as shown for the third tank, the points of connection of the two bulkheads may be spaced so that the sides of the hull serve as parts of the inclosing wall of the tank. "The bottom edges of the bulkheads'are connected through circularly bent angle bars 9 9 with the, floor plates whichneed be permanently attached to the keel and transverse bottom frames only in short sections underlying the bulkheads and omitted Within the tanks as shown in the third tank, or PI'OilL'lEQl'Wll'lfl manholes 10 10 as shown in the second tank so that the oil cargo will fill in between the bottom frames. Such openings may becovcred with temporary flooring or manhole covers when the vessel is used for general car o and the necessity, for thoroughly cleaning this part of the vessel is thereby carried above and below the manhole covers.

The bottom frames are perforated to saveweight and to permit the oil to flow freely into the spaces between frames which are floored over. One frame 11 between each two tanks is however left imperforate so that 14 14 with the deck plates 15 15 .of the vessel, which is thereby made to serve as the tops of the tanks as shown in the case of the second and third tanks, or, as shown with the forward tank a'cover 16 may be provided which is independent of the deck. In the former case the deck beams 17 17 are in sections ending at the walls of the tanks, and are connected with their ends opposite on each of the sides of the tank-walls orbulkheads by angle plates 18 18. The tops of the tanks are provided with expansion trunks 19 19, and when carrying oil the tanks are preferably filled so that the level will be in these trunks and rolling of the vessel will not cause destructive wash in the tanks.

The spaces between the convex sides of the bulkheads may also be utilized for oil carrying. The spaces on one side of the vessel are divided from the spaces on the other side by short longitudinal partitions 20 20 so that oil cannot pass from one side of the vessel to the other and diminish the stability. Transverse partitions 21 21 may also be provided between the hull and the tanks to separate these spaces on the same side of the vessel. Additional partitions 22 22 which may be curved in. either direc tion to be self bracing against the liquid pressure connect the transverse bulkheads and further sub-divide these spaces. They also afl'ord further bracing for the transverse bulkheads.

What I claim as new, and desire to secure by Letters Patent of the United States, 1s-

1. A tank vessel comprising a hull, and a vertical tank forming a part of the structure of the vessel the sides of the tank being formed by semi-circular bulkheads directly connected to the sides of the hull, substantially as described.

2. A ank vessel comprising a hull with side an bottom frames, and vertical cylindrical tanks forming a part of the structure of the vessel with side walls above the bottom frames, the tanks being in communication with the spaces between the bottom frames, substantially ascdescribed.

a part of the structure of the vessel the sides of which are sealed to the deck of the vessel, substantially as described.

4. A tank vessel comprising a hull and deck with side and bottom frames, and vertical cylindrical tanks forming a part of the structure of the vessel with side walls above the bottom frames, the tanks being in communication with the spaces between the bottom frames, and the sides of the tank being sealed to the deck, substantially as described.

5. A tanlrvessel comprising a hull with side and bottom frames, and vertical cylindrical tanks forming a part of the structure of the vessel with side walls above the bottom frames, the tanks being in communication 'with the spaces between the bottom frames, the frames beingperforate for free intercommunication between the spaces between them with the exception of one frame between each two adjoining tanks, substantially as described.

6. A tank vessel comprising a hull with transverse side and 'bottom frames, vertical cylindrical tanks forming a part of the structure ofthe vessel with-side walls above the bottom frames, the tanks being in communication with the spacefsibetween the bottom frames, and piping located in the spaces between the bottom frames, substantially as described.

7. A tank vessel comprising a hull, tanks forming a part of the structure of the vessel, the sides of the tanks being formed by semicircular bulkheads directly connected to the sides of the hull, and intermediate tanks included between the convex sides of the bulkheads and separated by longitudinal partitions, si'ibstantially as described.

8. A tank vessel comprising a hull, tanks forming a part of the structure of the vessel, the sides of the tanks being formed by semi-circular bulkheads directly connected to the sides of the hull, and intermediate tanks included between the convex sides of the bulkheads and separated by curved longitudinal partitions, substantially as described.

Signed, by me at New York, N. Y., the seventh day of April, 1913.

CHARLES P. M. JACK.

Witnesses SAMUEL W. BALCH, MAX 'WILLEMSTIJN.

A tank vessel comprising a hull and deck, and-vertical cylindrical tanks forming 

